Forging die and mount assembly



Oct. 1, 1946'. F. H. WYMAN ET AL 2,408,542

FORGING DIE AND MdUNT ASSEMBLY zsneets-s heet 1 Filed NOV. 17, 1942 INVENTOR Floyd Ji. wgmaz'z BY Joseph M Ma lilo ATTORNEYS Oct. 1, 1946. F. H. wYMAN ET AL 2,408,542-

v FORGING DIE AND MOUNT ASSEMBLY FildNoV. 1'7, 1942 2 Sheefcs-Sheet 2 E R w. o O

R's R INVENTORS BY e h MMaZzk.

ATTORNEYS Patented Oct. 1, 1946 2,408,542 7 FORGING DIE AND MOU NT ASSEMBLY Floyd H. Wyman and Joseph M. Malik, Toccoa, Ga., assignors to R. G. Le Tourneau, Inc., Stockton, Calif., a corporation of California Application November 17, 1942, Serial No. 465,860

Claims. 1

This invention relates in general to forgin dies and mounts therefor, and the invention has for its principal object the provision of a forging die and mount assembly which is arranged to facilitate placement of the workin the die, and removal of the forging from the die after the forming operation; the device being especially designed for use in power forging presses.

A further object of this invention is to provide a forging die and mount assembly in which the die is normally upstanding and opens upwardly; said die being mounted for tip-over movement from said upstanding position to a position opening laterally, whereby to permit the ready insertion of the work in the die, or the removal of the forging therefrom, particularly when the space between the head of the power press and the top of the die is limited, or in any instance where horizontal or lateral removal of the forging is more desirable.

An additional object of this invention is to provide a forging die and mount assembly,-as above, in which mechanism, either hand or power actuated, is connected with the die to tip the same between its upstanding and its tipped-over position.

It is also an object of this invention to provide a forging die and mount assembly in which the die is of cavity type, normally upstanding and opens upwardly, being mounted for tip-over movement from said upstanding position to a position opening laterally; the die having a bottom opening, and the assembly including a movable forging drive-out rod normally mounted clear of the die but adapted to project at one end through said bottom opening and to strike the forging when the die is in tipped-over position, said drive-out rod being manually actuated in one embodiment of the invention, and power actuated in another embodiment of the invention.

A further object of the invention is to produce a simple and inexpensive device and yet one which will be exceedingly effective for the .purpose for which it is designed.

These objects we accomplish by means of such structure and relative arrangement of parts as will fully appear-by a, perusal of the followin specification and claims.

In the drawings similar characters of reference indicate corresponding parts in the several views:

Figure 1 is a side elevation of the forging die mount assembly, illustrating an embodiment wherein the die tipover mechanism and the forging drive-out rod are both manually actuated.

Figure 2 is a fragmentary longitudinal sectional elevation showing the die in tipped-over posi-- tion and the forging drive-out rod in use.

Figure 3 is a side elevation of the forging die and mount assembly, illustrating an embodiment wherein the forging'drive-out rod is power actuated.

Figure 4 is a side elevation of a forging die and mount assembly, illustrating an embodiment wherein the die tip-over mechanism'is power actuated.

Referring now more particularly to the characters of reference on the drawings, and at present to the embodiment of Figs. 1 and 2, the forging die and mount assembly comprises a, horizontal elongated base 1 adapted to be removably secured to the bed 2 of the forging press by means of bolts 3. An upstanding die holder 4 is normally seated on the base I adjacent one end thereof; said die holder surrounding and supporting an upstanding cavity die 5 which includes a vertical work receiving bore 6 open to the top lofsaid die.

The die holder 4 and the supported die 5 are mounted for pivotal tipping 'i'novement longitudinally of the base I and toward the adjacent end, by means of transversely spaced ears 8 on the die holder adjacent its lower end pivoted, as at 9, to cooperating ears Ill mounted on the base I. A stop H on the base limits tip-over movement of the die holder to a position with the die bore 6 opening horizontally.

A horizontal longitudinally extending forging drive-out rod I2 is supported above the base 1 beyond the die holder, in a direction opposite to the direction of tip-over movement of the latter, by upstanding longitudinally spaced guide brackets.

The 'bottom of the die is formed with a central port M of a diameter less than the diameter of bore 6, and the rod I2 'alines with and is adapted to project through said port when the die holder and die'are'iii'tipped-over position. At the end opposite the die holder the rod I2 is formed with an enlarged head It, and a shockabsorbing compression spring l6 surrounds the rod [2 between head l5 and the adjacent guide bracket i3. As is shown in Fig. 1 the drive-out rod i2 is normally clear of the die holder 4.

The die tip-over arrangement comprises a bell crank lever llpivoted at l8'in connection'witn the base I for swinging movement in a vertical planelengthwise of'sai'd base; one leg is of the bellcrank I! being relatively short and normally projecting upwardlmwhile' the other leg 20 is normally substantially horizontal and is elongated to form ahandl'e. A rigid link 2| is pivotally connected between the upper end of leg 19 and the adjacent side of the die holder 4 at a point intermediate the ends of, and in tip-over relation to the latter.

Operation 3 drical forgings P, such as headed pins. After the forging P has been formed by the press in the upstanding die 5, the hand lever 20 of bellcrank H is swung upward, which causes the die holder to tip over to the laterally opening position shown in dotted-lines in Fig. 1. Thereafter the operator strikes the head E5 of rod l2 with a sledge hammer, which causes said rod to project at the other end through die port M and force, fully strike the adjacent end 01- the forging P, driving the latter out of the die. The spring I6 to head 15.

After the forging has thus been removed from the die the hand lever .28 is returned to normal horizontal position, which causes the die holder and die to likewise be returned to upstanding position for the next forging operation.

In the embodiment shown in Fig. 3 the die. holder land die 5. are mounted on the. base I, as above described, and are tipped from upstanding to. laterally opening position by a link 2m and a bellcrank li arranged in a manner si ilarto that above described in connection with link 2[ and bellcrank ll,

In this embodiment, however, the, forging drive-out is power actuated as follows:

A pressure fluid actuated power cylinder 22 is disposed horizontally in longitudinally extending relation above the base l beyondthe die holder in a direction opposite. to the. direction of tip-over movement of the latter; said, cylinder bein sup: ported by rigid end brackets 23. The, piston rod 24 of the cylinder Ziprojects from said cylinder toward but in normally clearance relation to. the die holder, said piston rodformin the forging drive-out rod of this embodiment. The piston rod 2 5. is disposed to. project throu h the bottom openin of the die when the. latter is. in tipped over position The. cyli der 22 is doublcract n and is energized by conduits. ..5 fed from a con-. trol valve (not shown)... f In the. operation of. this embodiment, the cyli der issuitably actuated o. cause the. piston rod to engage he. bottom. nd of the forging o drive said for in out f. thedie. l

n the emb dim nt. shown in Fig. 4,. the. normally upstanding die holder ib and diefibare likewis pivoted. as. t 6, r movement. between a. n rma y psta din position. and a. tinned. v r l teral y. open n p s tion. The ipsover me hanism er comprises. adouble-actin power YIindcr Z d sposed l n itudinall above. the a l be nd "th di hol er. inn dir ioncn: n s t t the i ection of. tin-over moyemcnt hc eof- At. s. o te end the c inder 21 is. pivotally m n d in onnection w th. a rigi pstandin k t Zticr l mit d. verti al sw n ing movement- The is n. rod 2.9.0.16.- cylinder 21. is. seure entrally o a y k $.0.;.the,1e s of the. lat". ter straddling thedie holder db. and, being. pivoted he et i te mediate it to nd bottom. as at 31. ljhe cylinder 27 is actuated through th medium o o du sfiii ed. rom c r l valve .(nct i QW s. s. pparent, actuat on of th cy1in.-.

der 2f! to advance the piston rod 28 causes the die holder lb ahddie 527 to be tipped from normally p ng i i to a lat rally Op n n 7 position,"

In this embodiment no forgingdrive-out'means is employed, due to the fact that the die 5b is of a type employed to form tapered forgings, which can be removed from the die, without the necessity of drive-out me an s. H.owev.er, ii drive-put 4 means are found desirable, the same may be incorporated in this embodiment of the invention and can be of the manually actuated type shown in Figs. 1 and 2, or the power actuated type, shown in Fig. 3.

From the foregoing description it will be readily seen that we have produced such a device as substantially fulfills the objects of the invention as set forth herein.

While this specification sets forth in detail the present and'preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described our invention, what We c aim as new a d u ul and desire to secure y Letters Patent is:

1 A forging die and mount assembly comprising a base, a normally upstanding die on the base, means pivotally mounting the die for tipover movement in one direction, a bellcrank lever pivotally mounted in connection with the base in the other direction from the die and on a parallel axis, and a link pivotally connected in tipover relation to the die between the latter and one legof said lever; the other leg of said lever comprising an actuating handle. 7

2. A device as inclaim 1 in which said one leg is relatively. s rt and normal y u s andin th other legbeing elongated and normally substantially horizontal.

3. n forging die and mount assembly comprising a base, a normally upstanding, upwardly opening cavity die on the base, means pivoting the die for tip-over movement in one direction to a laterally opening position, said die having a bottom opening, a forging drive out rod, an upstanding guide member sli dably mounting said rod above the base in axial alinement, with the bottom opening in the die when the latter is in said laterally opening position, said rod being normally clear of the die but axially movable through said opening, an enlarged head on the end ofthe rod opposite the die, and a compression spring on the rod between the head and guide member.

V 4. A. forging die and mount assembly. comprising a base, a normally upstanding die on the base, means pivotally mounting the die for tipover movement'in one. direction, a lever pivotally mounted in connection with the base in the other direction from the die and on a parallel axis, and a link pivotally. connectedin tip-over relation to the die between the latter and said lever; one end portion of said lever comprising an actuating handle.

5. A forging die and mount assembly compris ing a base, a normally upstanding, upwardly openingv die cavity on the base, meanspivoting the die for tip-over movement in one direction to a laterally opening position, said die having a bottom opening, a forging drive out rod, means slidably mounting said rod above the base in axial alinement with the bottom opening in the die when the latter is in said laterallyopening position, said rod being normally clear of the die but axially movable through said opening, said mounting means comprising longitudinally spaced brackets upstanding from the base; an rs db ad n. th end; f, h d. opposi h d e and. acompr m p n on t e od be: tween the head and the adjacentbracket.

- FLOYD. H, 'WYMAN.

IQ SEEK M. 

